Journal ArticleDOI
Compact efficient broadband grating coupler for silicon-on-insulator waveguides.
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A high-efficiency broadband grating coupler for coupling between silicon-on-insulator (SOI) waveguides and optical fibers and the size of the grooves is optimized numerically.Abstract:
We have designed a high-efficiency broadband grating coupler for coupling between silicon-on-insulator (SOI) waveguides and optical fibers. The grating is only 13 µm long and 12 µm wide, and the size of the grooves is optimized numerically. For TE polarization the coupling loss to single-mode fiber is below 1 dB over a 35-nm wavelength range when using SOI with a two-pair bottom reflector. The tolerances to fabrication errors are also calculated.read more
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Air-suspended SU-8 polymer waveguide grating couplers
Christoph Prokop,Steffen Schoenhardt,Bert Laegel,Sandra Wolff,Arnan Mitchell,Christian Karnutsch +5 more
TL;DR: In this paper, the SU-8 polymer waveguide grating couplers for TE mode with enhanced refractive index contrast by employing air as upper and lower cladding layer were successfully fabricated and characterized.
Journal ArticleDOI
Direct Imaging of Isofrequency Contours of Guided Modes in Extremely Anisotropic All-Dielectric Metasurface
Dmitry Pidgayko,Ivan S. Sinev,Dmitry V. Permyakov,Stanyslav Sychev,Frank Heyroth,Viktoriia Rutckaia,Joerg Schilling,Andrei V. Lavrinenko,Andrey Bogdanov,Anton Samusev +9 more
TL;DR: In this paper, an all-dielectric metasurface based on the silicon on insulator platform for manipulating guided modes in the visible and near-infrared spectral ranges is investigated.
Journal ArticleDOI
Grating Couplers for Fiber-to-Fiber Characterizations of Stand-Alone Dielectric Loaded Surface Plasmon Waveguide Components
Michael Grøndahl Nielsen,J.-C. Weeber,Karim Hassan,Julien Fatome,Christophe Finot,Serkan Kaya,Laurent Markey,Ole Albrektsen,Sergey I. Bozhevolnyi,Guy Millot,Alain Dereux +10 more
TL;DR: In this paper, the dispersion of the plasmonic Bloch modes supported by DLGs as a function of the period and the filling factor of the gratings is analyzed for fiber-to-fiber characterizations of DLSPPW components.
Silicon nitride membrane photonics
TL;DR: In this article, a novel metallic photonic crystal grating coupler is proposed to realize large area nanophotonic circuits in a silicon nitride membrane, which can be fabricated using a single lithography and etching step.
Journal ArticleDOI
3D-printed optical probes for wafer-level testing of photonic integrated circuits.
Mareike Trappen,Matthias Blaicher,Philipp-Immanuel Dietrich,Colin Dankwart,Yilin Xu,T. Hoose,M. R. Billah,Amin Abbasi,Roel Baets,Ute Troppenz,Michael Theurer,Kerstin Worhoff,Moritz Seyfried,Wolfgang Freude,Christian Koos +14 more
TL;DR: 3D-printed coupling elements based on 3D- printed freeform coupling elements that fit into deep-etched dicing trenches on the wafer surface represent a key step towards highly reproducible wafer-level testing of edge-coupled photonic integrated circuits.
References
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Journal Article
Electromagnetic Optimization by Genetic Algorithms
TL;DR: This book describes numerous applications of genetic algorithms to the design and optimization of various low- and high-frequency electromagnetic components and provides a comprehensive list of the up-to-date references applicable to electromagneticdesign problems.
Journal ArticleDOI
Ultra-low loss photonic integrated circuit with membrane-type photonic crystal waveguides
TL;DR: The combination of an efficient two-stage coupling scheme and utilization of ultra-long (up to 2mm) photonic crystal waveguides reduces the uncertainty in determining the loss figure to 3dB/cm.
Journal ArticleDOI
An out-of-plane grating coupler for efficient butt-coupling between compact planar waveguides and single-mode fibers
Dirk Taillaert,Wim Bogaerts,Peter Bienstman,Thomas F. Krauss,P. Van Daele,Ingrid Moerman,Steven Verstuyft,K. De Mesel,Roel Baets +8 more
TL;DR: In this paper, an out-of-plane coupler for butt-coupling from fiber to compact planar waveguides is proposed based on a short second-order grating or photonic crystal, etched in a waveguide with a low-index oxide cladding.
Journal ArticleDOI
Low loss mode size converter from 0.3 [micro sign]m square Si wire waveguides to singlemode fibres
TL;DR: In this article, a novel integrated mode size converter for single-mode Si wire waveguides is presented, which is constructed with two-dimensional tapered Si waveguide and overlaid high-index polymer waveguide.
Journal ArticleDOI
Optical modelling of photonic crystals and VCSELs using eigenmode expansion and perfectly matched layers
Peter Bienstman,Roel Baets +1 more
TL;DR: In this paper, a modeling approach for photonic crystal structures and vertical-cavity surface-emitting lasers (VCSELs) is presented based on vectorial eigenmode expansion combined with perfectly matched layer (PML) boundary conditions.